BUG: :last-of-type, :first-of-type are selectors that select the last of every type. When not specifying a specific item this causes all kinds of issues with margin-bottom, and other things. :last-child and :first-child were more correct.
Merge pull request #1599 from itsthatguy/bug-last-of-type

BUG: :last-of-type, :first-of-type cause all kinds of bugs